丙醛＋正己醛含量评价DHA/ARA粉末油脂氧化情况的可行性研究  

Feasibility of using propanal + hexanal content to evaluate oxidation of DHA/ARA oil powder

作　　者：王勇 黄昭先 李晓龙 黄健花[3] 王兴国[3] 金青哲[3] WANG Yong;HUANG Zhaoxian;LI Xiaolong;HUANG Jianhua;WANG Xingguo;JIN Qingzhe(COFCO Eastoeean Oils ＆ Grains Industries（Zhangjiagang）Co,Ltd,Zhangjiagang 215634,Jiangsu,China;COFCO Nutrition ＆ Health Research Institute,Beijing 102209,China;Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province,State Key Laboratory of Food Science and Technology,School of Food Science and Technology,Jiangnan University,Wuxi 214122,Jiangsu,China)

机构地区：[1]中粮东海粮油工业(张家港)有限公司,江苏张家港215634 [2]中粮营养健康研究院,北京102209 [3]江南大学食品学院,食品科学与技术国家重点实验室,食品安全与营养协同创新中心,江苏无锡214122

出　　处：《中国油脂》2018年第8期29-31,共3页China Oils and Fats

摘　　要：采集了DHA粉末油脂、ARA粉末油脂和ALA粉末油脂样本110个,样本涵盖了新鲜、临近货架期、超过货架期的样品,测定其过氧化值、茴香胺值、全氧化值、丙醛和正己醛含量,并将丙醛+正己醛含量与过氧化值、茴香胺值、全氧化值进行了相关性分析。Pearson相关性分析表明,丙醛+正己醛含量与过氧化值、茴香胺值、全氧化值在P<0.01水平呈极显著相关,相关性系数分别为0.663、0.869和0.846;非线性拟合结果表明,丙醛+正己醛含量与过氧化值、茴香胺值、全氧化值回归方程的相关系数分别为0.726 4、0.989 0和0.978 4;测定DHA/ARA粉末油脂的挥发性丙醛+正己醛含量,将其作为特征指标可以简便、准确地表征粉末油脂的氧化情况,尤其是后期氧化情况。110 fresh, near shelf life and outdated DHA, ARA and ALA oil powder samples were collect- ed. The peroxide values（ POVs）, p -anisidine values（ PAVs）, total oxidation values, propanal and hex- anal contents were detected. And the correlation analysis was used to evaluate the relationship between the propanal ＋ hexanal content and the POVs, the PAVs, and the total oxidation values. Pearson correla- tion analysis showed that the correlation was statistically and extremely significant（ P 〈 0.01 ）. And the correlation coefficients between the propanal ＋ hexanal content and the POVs, the PAVs, the total oxida- tion values were 0.663,0. 869 and 0. 846, respectively. Nonlinear fitting results showed that the changes of propanal ＋ hexanal content with the POVs, the PAVs and the total oxidation were simulated, and the corresponding correlation coefficients were 0. 726 4, 0. 989 0 and 0. 978 4. It was feasible and convenient to evaluate the oxidation level of oil powder by detecting the propanal ＋ hexanal content, especially in the later periold of oxidation.

关 键 词：DHA/ARA粉末油脂 氧化 丙醛+正己醛含量 评价 

分 类 号：TS201.2[轻工技术与工程—食品科学] TQ646[轻工技术与工程—食品科学与工程]